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Looking for cheap fertiliser recommendations.

Greengeek

Member
Joined
27 Mar 2020
Messages
92
Location
Fareham, Hampshire
Hi everyone.

Can anyone recommend a cheaper way to dose trace and macro fertilisers, maybe mixing my own for example with dry ingredients? A ready made dry mix or a receipt to make my own 2 part dosing mix? Plus where to buy?

Basically I’m spending a small fortune every month on pre made fertiliser for my tanks. I contacted a dry ferts company asking for recommendations but unfortunately they said without CO2 I’d just be risking algae? Can you really not use dry ferts etc on a low tech tank?

I don’t have algae issues currently, all tanks are mature and lighting adjusted so algae is not a issue. I do use fertilisers that contain both trace elements and macronutrients ie Tropica Plant Growth Specialised or Neutro+ plant fertiliser etc, I use the ferts with NPK as I have low no3 and PO4 issues probably due to using RODI water, low stocking levels, high plant loads and weekly water changes.

But my plants in all my tanks high tech and low, look like they are still not at there best, a yellowish tone to them. I think in part because the no3 and PO4 is still practically unmeasurable?

I think maybe dosing the trace elements separately from the macro so I can increase NPK without increasing trace might be a solution to try?

I don’t want to run CO2 on my 1,200l tank as it’s gravity fed sump drives of CO2 incredibly effectively, even with the pipe entering the sump 12 inches under water it’s like a jacuzzi. I tried over 18 months running CO2 using 2 x fire extinguishers and was replacing them nearly monthly even with inline diffusers and reactors…I gave up the CO2 as my wallet was moaning almost as much as my husband at the money I was spending on refills.

Tanks look like this at the moment, plant growth is slowish and can you see the leaves are yellowish?
1,200l (display + sump volume combined)
2B529CE9-7DDC-4059-99C8-941A586670DD.jpeg

5634338F-2DF9-4CBE-8F52-5EAEC7A49BB8.jpeg

B74C5988-4A06-413A-AAFE-5160258F4337.jpeg
59DB50DB-FCC0-4C0F-9201-D5895AB838FF.jpeg

Some of my other tanks:

0515C3D8-4B06-41B9-BBA6-1B8BEAB1A6DF.jpeg 9E984047-F515-4BEC-A371-274CA77830B7.png 2C6FF2A9-E45E-4765-A73C-99B9430C6895.png

Can anyone recommend a cheap way to dose trace and macro, mixing my own for example with dry ingredients? A ready made dry mix or a receipt to make my own 2 part dosing mix?
 
APF sells a pretty popular starter kit, or you could source the salts yourself from anywhere you like really.
The most common salts to use are; KNO3, KH2PO4, and K2SO4 for macros, a premade trace blend for iron and traces, and MgSO4.
Most have enough calcium in their water from either their tap or from a remineralization salt.
MgSO4 (magnesium) is not commonly found in tapwater in the UK, but should make up a decent portion of most premade remineralizers.
Sometimes a different iron source is recommended in addition to the iron in the trace mix, this is mostly for those with higher PH.
Ascorbic acid and Potassium sorbate are used as preservatives.

I highly recommend mixing up your own ferts, you save a lot of money :thumbup:
Let me know if anything I wrote is unclear
 
Last edited:
APF sells a pretty popular starter kit, or you could source the salts yourself from anywhere you like really.
The most common salts to use are; KNO3, KH2PO4, and K2SO4 for macros, a premade trace blend for iron and traces, and MgSO4.
Most have enough calcium in their water from either their tap or from a remineralization salt.
MgSO4 (magnesium) is not commonly found in tapwater in the UK, but should make up a decent portion of most premade remineralizers.
Sometimes a different iron source is recommended in addition to the iron in the trace mix, this is mostly for those with higher PH.
Ascorbic acid and Potassium sorbate are used as preservatives.

I highly recommend mixing up your own ferts, you save a lot of money :thumbup:
Let me know if anything I wrote is unclear
This is what I’m after especially the receipt. Thank you.
 
APF sells a pretty popular starter kit, or you could source the salts yourself from anywhere you like really.
The most common salts to use are; KNO3, KH2PO4, and K2SO4 for macros, a premade trace blend for iron and traces, and MgSO4.
Most have enough calcium in their water from either their tap or from a remineralization salt.
MgSO4 (magnesium) is not commonly found in tapwater in the UK, but should make up a decent portion of most premade remineralizers.
Sometimes a different iron source is recommended in addition to the iron in the trace mix, this is mostly for those with higher PH.
Ascorbic acid and Potassium sorbate are used as preservatives.

I highly recommend mixing up your own ferts, you save a lot of money :thumbup:
Let me know if anything I wrote is unclear
Purchased the kit, that will get me started and I can use my Jecod auto doser. Thanks so much, really appreciated.
 
Hi all,

The cheapest would be <"Miracle Gro", but "Solufeed 2: 1: 4>" mix would be my suggestion. £14 delivered from the <"Solufeed shop front">, I bought a kilo myself today.

cheers Darrel
Darrel is correct... However... just be aware this product contains urea...
Purchased the kit, that will get me started
It will get you started that's the main thing.
Just note that the recipe it comes with is fairly lean.
It's lean in some trace elements but certainly not iron. 😛
 
Been reading this article.
I make my own dry ferts, macro and micro.
I am having problems sourcing CSM+B trace elements.
I am currently working and living / working in northern Germany.
Would there be an alternative to CSM+B that I could mix myself.
Thanks
 
Hi all,
I am having problems sourcing CSM+B trace elements.
I am currently working and living / working in northern Germany.
Would there be an alternative to CSM+B that I could mix myself.
Any micro-element mix should do. @zozo (Marcel) is Dutch, but he may have some suggestions?

<"YaraVita"> might be a possibility? or <"Solufeed sodium free">? You maybe interested in <"this thread">. @Happi might be your best bet for advising you on an optimal mix. I have a bit of a <"laissez faire"> attitude to <"micro-element dosing">.

cheers Darrel
 
But, it's Plantex from Canada...

Sorry, but this product is (temporarily) unavailable.

The alternative he currently offers is Tenso Cocktail, he says it's the same except it contains a tad more Ferro and Calcium.
He sends to Germany... :)

Southern neighbours BE, probably the same source...
The same story sold out.

The UK maybe? Seems still in tock?...
 
I'm using Solufeed fertilizers for quite a long time in my tanks. Here are EI dosings for it:

Macro: Solufeed 2-1-4 - 75g per 1l, dosing 10ml/100l gives us 5ppm NO3 (equivalent) 0.7ppm PO4 and 2ppm K; I dose that three times per week as per EI dosage:
Micro: Solufeed TEC-SF (not TEC!) - 63g per 1l, dosing 10ml/100l gives 0.1ppm Fe + traces; I dose that twice per week
Fe: Solufeed FeDTPA - 8g per 1l, dosing 10ml/100l gives 0.1ppm Fe only; I dose that three times per week

Micro and Fe must be kept in a dark place in a non-transparent bottles preferrably, as they intend to be destructed by light pretty quickly. I also add 7ppm K and 5ppm Mg on each water change as our tap water is very poor in these elements. I'm adding extra Fe instead of traces because Tec-SF lacks Iron comparing to other traces, and I'm using DTPA as one of my tanks uses pure tap water which is very hard and quite alkaline for EDTA. There are no issues with Urea in macro - vise-versa, I have found that some plants such as Mermaid weed grows much, much better with Urea comparing to pure NO3 options.

I use this dosing for three my tanks without any significant issues, including a rainwater tank with some pretty sensitive plants (and shrimps), such as eriocaulons sp and Ludwigia Inclinata sp. White:
APC_0217.jpg
APC_0213.jpg
APC_0216.jpg
I have no algae issues with these fertilisers (but I'm a fan of overfiltration), I don't even clean glasses at all.
 
I'm using Solufeed fertilizers for quite a long time in my tanks. Here are EI dosings for it:

Macro: Solufeed 2-1-4 - 75g per 1l, dosing 10ml/100l gives us 5ppm NO3 (equivalent) 0.7ppm PO4 and 2ppm K; I dose that three times per week as per EI dosage:
Micro: Solufeed TEC-SF (not TEC!) - 63g per 1l, dosing 10ml/100l gives 0.1ppm Fe + traces; I dose that twice per week
Fe: Solufeed FeDTPA - 8g per 1l, dosing 10ml/100l gives 0.1ppm Fe only; I dose that three times per week

Micro and Fe must be kept in a dark place in a non-transparent bottles preferrably, as they intend to be destructed by light pretty quickly. I also add 7ppm K and 5ppm Mg on each water change as our tap water is very poor in these elements. I'm adding extra Fe instead of traces because Tec-SF lacks Iron comparing to other traces, and I'm using DTPA as one of my tanks uses pure tap water which is very hard and quite alkaline for EDTA. There are no issues with Urea in macro - vise-versa, I have found that some plants such as Mermaid weed grows much, much better with Urea comparing to pure NO3 options.

I use this dosing for three my tanks without any significant issues, including a rainwater tank with some pretty sensitive plants (and shrimps), such as eriocaulons sp and Ludwigia Inclinata sp. White:
View attachment 185628
View attachment 185629
View attachment 185630
I have no algae issues with these fertilisers (but I'm a fan of overfiltration), I don't even clean glasses at all.
have observed same with urea. am currently trying out nh4no3. anyway, if you take out media in your filter you will should able to maximize urea availability. plants will uptake it fairly quickly so should be no issues there.
anyways, your dosing is quite far from EI and is closer to @Happi 's approach. High N low K low P and moderate traces.
my tank is dosed to 0.083ppm Fe plus traces and 2ppm N (8ppm no3 from urea and nh4no3). 0.88ppm Po4 and 3ppm K ( a bit higher than usually.
above dosing is per week and proves very effective.

also im not seeing ludwigia white in any of the photos? very nice tanks by the way.
 
anyways, your dosing is quite far from EI
Hum, the cumulative weekly doses are:
15ppm NO3
13ppm K
2.1ppm PO4
0.5ppm Fe
5.5ppm Mg

I'm under impression it is quite close to the EI dosage (at least, according to the charts on rotalabutterfly).
im not seeing ludwigia white in any of the photos
It could probably be seen on the first photo near Lagenadra, but it is quite shaded and overgrown by Rotala H'ra - I'm too lazy to fix it :)
 
Hum, the cumulative weekly doses are:
15ppm NO3
13ppm K
2.1ppm PO4
0.5ppm Fe
5.5ppm Mg

I'm under impression it is quite close to the EI dosage (at least, according to the charts on rotalabutterfly).

It could probably be seen on the first photo near Lagenadra, but it is quite shaded and overgrown by Rotala H'ra - I'm too lazy to fix it :)
"5ppm NO3 (equivalent) 0.7ppm PO4 and 2ppm K"
is what you said before. x3
that'll be 15ppm No3, 2.1 ppm Po4, and 6ppm K. quite far from standard EI. have you tried lowering the dose to maybe no3 as proxy 10ppm?
 
But I've also mentioned that I add 7ppm K (on K2SO4) and 5ppm Mg (on anhydrous MgSO4) after each water change. By the way, there is another Solufeed fertilizer that has 9:7:36 proportion, presumably having all N on KNO3 salt. However, I have not tried it personally, as 2:1:4 works fine for me. The reasons why my numbers are a bit lower than full EI is that I've just used 15ppm of NO3 as a main upper limit for everything. With 2:1:4 it implied additional K to be added, with 9:7:36 I'd probably skip that.
 
But I've also mentioned that I add 7ppm K (on K2SO4) and 5ppm Mg (on anhydrous MgSO4) after each water change. By the way, there is another Solufeed fertilizer that has 9:7:36 proportion, presumably having all N on KNO3 salt. However, I have not tried it personally, as 2:1:4 works fine for me. The reasons why my numbers are a bit lower than full EI is that I've just used 15ppm of NO3 as a main upper limit for everything. With 2:1:4 it implied additional K to be added, with 9:7:36 I'd probably skip that.
oh sorry did not see that. am not sure if you need the additional K, have you tried without it? would like to see the results.
 
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